<template>
	<section>
		<!--工具条-->
		<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
			<el-form :inline="true" :model="filters">
				<el-form-item>
					<el-input v-model="filters.keyword" placeholder="高级查询"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" v-on:click="highQuery()">查询</el-button>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" @click="handleAdd">新增</el-button>
				</el-form-item>
			</el-form>
		</el-col>

		<!--列表-->
		<el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">

      <!--这就是每行数据前面的复选框-->
      <el-table-column type="selection" width="55">
      </el-table-column>

      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="name" label="部门名称" width="120" >
      </el-table-column>
      <el-table-column prop="sn" label="部门编号" width="100" >
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100" sortable>

        <template scope="scope">
          <span style="color: green" v-if="scope.row.state===1">开启</span>
          <span style="color: red" v-else-if="scope.row.state===0">禁用</span>
          <span style="color: gray" v-else>未知</span>
        </template>

      </el-table-column>
      <el-table-column prop="manager.username" label="负责人" width="120" >
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" min-width="180" >
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
		</el-table>

		<!--工具条-->
    <!--:disabled="this.sels.length===0 数组长度为0的时候就不能使用-->
		<el-col :span="24" class="toolbar">
			<el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
			<el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :current-page="currentPage" :page-size="pageSize" :total="total" style="float:right;">
			</el-pagination>
		</el-col>

		<!--编辑界面-->
		<el-dialog :title="title" :visible.sync="editFormVisible" :close-on-click-modal="false">
			<el-form :model="editForm" label-width="80px" :rules="editFormRules" ref="editForm">
				<el-form-item label="部门名称" prop="name">
					<el-input v-model="editForm.name" auto-complete="off"></el-input>
				</el-form-item>
        <el-form-item label="部门编号" prop="sn">
          <el-input v-model="editForm.sn" auto-complete="off"></el-input>
        </el-form-item>
				<el-form-item label="状态">
					<el-radio-group v-model="editForm.state">
						<el-radio class="radio" :label="1">开启</el-radio>
						<el-radio class="radio" :label="0">禁用</el-radio>
					</el-radio-group>
				</el-form-item>
        <el-form-item label="部门经理" >

          <el-select v-model="editForm.managerId" placeholder="请选择">
            <!--遍历
            label：选中时显示的数据
            value：传给后端的参数
            -->
            <el-option
                v-for="item in emps"
                :label="item.username"
                :value="item.id">
              <!-- 存在下面两个的时候，下拉框展示，优先展示下面的-->
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>

        </el-form-item>
        <el-form-item label="上级部门" >
          <!--
           value：传给后端的值
           label：选中后的值
           -->
          <el-cascader
              v-model="editForm.parentId"
              :options="options"
              :props="{ checkStrictly: true ,
              value : 'id',
              label: 'name'
              }"
              clearable>
          </el-cascader>

        </el-form-item>
			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click.native="editFormVisible = false">取消</el-button>
				<el-button type="primary" @click.native="editSubmit" :loading="editLoading">提交</el-button>
			</div>
		</el-dialog>

	</section>
</template>

<script>
	import util from '../../common/js/util'
	//import NProgress from 'nprogress'
	import { getDepartmentListPage, removeDepartment, batchRemoveDepartment, editDepartment, addDepartment } from '../../api/api';

	export default {
		data() {
			return {
        options: [],
        emps: [],
        title:'',
				filters: {
					keyword: ''
				},
				departments: [],
				total: 0,
				pageSize: 5,
        currentPage:1,
				listLoading: false,
				sels: [],//列表选中列

				editFormVisible: false,//编辑界面是否显示
				editLoading: false,
				editFormRules: {
					name: [
						{ required: true, message: '请输入部门名称', trigger: 'blur' }
					],
          sn: [
            {required: true, message: '请输入部门编号', trigger: 'blur'}
          ]
				},
				//清空编辑界面的旧数据
				editForm: {
          id:null,
          sn:'',
          name:'',
          state:1,
          managerId:null,
          parentId:null
				},


			}
		},
		methods: {
      getDeptTree(){
        this.$http.get("/dept/tree")
            .then(result=>{
              this.options = result.data;
            })
      },
		  //查询员工数据 作为部门经理
      getEmps(){
        // 去查询 所有员工数据，用来作为部门经理
        this.$http.get("/emp")
            .then(result=>{
              this.emps = result.data;
            })
      },
		  //高级查询的函数，防止出现页码问题
		  highQuery(){
		    this.currentPage = 1;
		    this.getDepartments();

      },
			handleCurrentChange(val) {
				this.currentPage = val;
				this.getDepartments();
			},
			//获取部门列表
			getDepartments() {
				let para = {
					page: this.pageSize,
          currentPage:this.currentPage,
					keyword: this.filters.keyword
				};
				//忙等
				this.listLoading = true;

				//查询
        // 我们要发送Axios请求
        this.$http.post("/dept", para)
            .then(result => {
              // 进到这里面来 肯定是请求成功的
              this.listLoading = false;
              this.departments = result.data.rows;
              this.total = result.data.totals;
            })
            .catch(result => {
              // 报错了的 请求失败
              this.$message({
                message: '网络异常，请稍后重试！',
                type: 'error'
              });
            })
      },
      //删除  row是当前行的数据
      handleDel: function (index, row) {
        this.$confirm('确认删除该记录吗?', '提示', {
          type: 'warning'
        }).then(() => {
          this.listLoading = true;
          this.$http.delete("/dept/"+row.id)
              .then(result=>{
                //删除成功之后将忙等关闭
                this.listLoading = false;
                this.$message({
                  message:result.data.msg,
                  type:'success'
                });
                // 刷新一下列表 是否跳转到第一页 你们自己玩
                this.currentPage = 1;
                this.getDepartments();
              })
              .catch(result=>{
                // http请求不成功或者后端抛异常到前端就走catch
                this.$message({
                  message: "网络异常，请稍后重试!",
                  type: 'error'
                });
              })
        }).catch(() => {

        });
      },
			//显示编辑界面
			handleEdit: function (index, row) {
        this.getDeptTree();
        this.getEmps();
				this.editFormVisible = true;
        this.title = "编辑";
				this.editForm = Object.assign({}, row);
			},
			//显示新增界面
			handleAdd: function () {
        this.getDeptTree();
        this.getEmps();
				this.editFormVisible = true;
        this.title = "新增";
				this.editForm = {
          id:null,
          sn:'',
          name:'',
          state:1,
          managerId:null,
          parentId:null
				};
			},
			//编辑或者新增提交按钮绑定事件
			editSubmit: function () {
        this.$refs.editForm.validate((valid) => {
          if (valid) {
            this.$confirm('确认提交吗？', '提示', {}).then(() => {
              this.editLoading = true;
              //NProgress.start();
              //克隆数据
              let para = Object.assign({}, this.editForm);
              if (para.parentId){
                // 如果存在parentId
                para.parentId = para.parentId[para.parentId.length - 1];
              }
              this.$http.put("/dept",para)
                  .then(result=>{
                    this.editLoading = false;
                    this.editFormVisible = false;
                    this.$message({
                      message: result.data.msg,
                      type: 'success'
                    });
                    this.currentPage = 1
                    this.getDepartments();
                  })
                  .catch(result=>{
                    this.$message({
                      message: "操作失败，请稍后重试 ！",
                      type: 'error'
                    });
                  })
            });
          }
        });
      },

      //监听事件，监听批量删除前面的复选框--是否有参数，有参数即选上了
      //批量删除才会可用
			selsChange: function (sels) {
				this.sels = sels;
			},
			//批量删除
			batchRemove: function () {
		    //类似于stream流，将数组中的id封装为一个数组
				var ids = this.sels.map(item => item.id);
				this.$confirm('确认删除选中记录吗？', '提示', {
					type: 'warning'
				}).then(() => {
					this.listLoading = true;
					this.$http.patch("/dept",ids)
          .then(result=>{
            //关闭忙等
            this.listLoading = false;
            this.$message({
              message: result.data.msg,
              type: 'success'
            });
            //刷新列表，跳转到第一页
            this.currentPage = 1;
            this.getDepartments();
          })
          .catch(result=>{
            // http请求不成功或者后端抛异常到前端就走catch
            this.$message({
              message: "网络异常，请稍后重试!",
              type: 'error'
            });
          })
				}).catch(() => {

				});
			}
		},
		mounted() {
      //this.getDeptTree();
      //this.getEmps();
			this.getDepartments();
		}
	}

</script>

<style scoped>

</style>